Feed-mill



W. l.l BEALL.

-FEED MILL.

APPLicATloN FILED JAN. 27. 1919.

Patented Oct. 25, 1921.

2 SHEETS-SHEET l.

NIIHINIIMIIIIIIINWIi W. L. BEALL.

FEED MILL.

APPLICATION FILED 1AN274, I9I9. I

Patented Oct. 25, 1921.y

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

WILLIAM L. BEALL, 0F CHICAGO, IITLINQOIS, ASSIGNOR TO INTERNATIONAL- HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

FEED-MILL.

Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed January 27, 1919. Serial No. 273,411.

T 0 allwhom t may concern: y

Be it known that I, WILLIAM Il. BEALL, a citizen of the United States, residing at Chicago; in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Feed-Mills, o-f which the following is a full7 clear, and exact speciiication.

This invention relates to feed grinding machines and machines of like character.

The object of the invention is to provide a construction in' which the different operative elements are readily accessible and may be easily and quickly assembled and disassembled.

A further object is to pro-vide a construction in which the parts are self-alining and are automatically held in proper adjustment for effective grinding operation.

Another object is to provide a construction by means of which the maximum amount of service maybe obtained without the necessity of regrinding the operative cutting and grinding surfaces of the grinding elements.

`A still further object is to provide a construction that is simple and etlicient in operation and may be manufactured and assembled at a minimum expense.A

One embodiment of the invention is illustrated in the accompanying drawings, and in these drawings,-

Figure 1 is a vertical sectional view taken through the feed grinder and showing my improved construction; Y Y

Fig. 2 is a front elevationof the stationary plate holder;

Fig. 3 is a front elevation of the discharge opening plate; Y

Fig. 4 is a rear elevational view of the stationary auger plate.; Y

Fig. 5 shows the stationary plate holder in section and the discharge opening plate and stationary auger plate and grinding plate spaced therefrom;

` Fig. 6l is a view partly in section showing the stationary auger plate and grinding plate;

Fig. 7 is a front elevation-ofthe auger plate and grinding plate shown in Fig. 6;

Fig. 8 is a rear elevation of the rotary auger plate;

Fig. 9 is a, side elevation of the construction shown in Fig.V 8;

Fig. 10 is a rear elevation of the rotary plate holder;

Figs. 11 and 12 are rear and side elevational views, respectively, of the hub which connects the rotary plate holder grinding shaft; and

Fig. 13 is a sectional View of the rotary plate holder and the rotary auger plate sho-wing the manner in which they are connected.

The feed grinding machine in connection with which my invention has been illustrated comprises a frame 2O having a hopper 21 suitably supported thereon and provided with a grinding shaft 22 journaled in suitable bearings 23 carried by the frame 20. The shaft 22 carries cob breakers 24 which may be of any suitable construction, and an auger feed and breaker 25 which breaks up the material and feeds it to the grinding mechanism hereinafter described.

The mechanism which further breaks up the material passing throughv the machine comprises, briefly, a stationary plate holder 26, a grinding plate 27, and a stationary auger plate 28, and cooperating with these stationary members are the rotary plate holder 29, the rotary grinding plate 30 carried thereby, and a rotary auger plate 31, also secured to the rotary plate holder.

The particular construction of the various elements which make up the grinding mechanism will now be described.

The stationary plate holder 26 is provided with a rearwardly projecting annular flange 32 which in turn is provided with 'an annular series of inwardly projecting ribs 33 which coperate with the spiral blades of the breaking and feeding member 25 to break up the cobs or other material that is being fed through the machine. The stationarv plate holder is also provided on its opposite face with annular ribs 34 and 35, the rib 34 being provided with suitable bolt holes 36 through which are passed the bolts 37 which secure the grinding plates 27 to the plate holder 26. The rib 35 is provided to cooperate with the annular surface of the casing 38 which incloses the grinding mechanism and is provided With a discharge chute 39.

In order to properly position the stationary auger plate 28 with respect to the stationary plate holder and the stationary sitioned over the grinding shaft as illustrated in Figs. 2 and 3, and extends downwardly on each side of the grinding shaft, the lower edges being inclined as shown at 43. The plate holder 26 also has notches 43 properly located to engage the lower edges 43 of the plate 42, thereby further determin- Vining theV proper positioning of said plate.

The stationary auger plate 28 is provided with a series'of ribs 44 spaced around its periphery and projectinginwardly from the inner edge of the plate and extending to the outer periphery of the plate. On its opposite side the auger plate 28 is provided with an offset portion 45 forming shoulders 46 'which in coperation with the inclined edges 43 of the discharge opening plate 42, determine the position of the auger plate 28 on the stationary plate holder 26. In order to further determine the position of this plate, an upwardly projecting lug 47 is formed on the plate 28 and this lug enters the notch 40 in the stationary 1slate holder 26.

As stated above, the plate holder 26 is provided with a plurality of bolt holes 36 through whi h are passed the bolts 37 which Asecurethe grinding plate 27 to the plate holder 26. The auger plate 28 is clamped between the grinding plate 27 and plate holder 26, and -is held in place by said plate 27. g i

Attention is here directed to the fact that these bolt holes are so spaced on the stationary plate 26 that the ribs 48 formed on the grinding plate 27 will be positioned in alinement with the ribs 44 formed on the auger plate when the grinding plate is secured in place bythe bolts37.

Attention is-direc'ted to Figs. l and 7 in 'which theV construction of the grinding plate is illustrated, these plates being' reversible and being provided ywith grinding surfaces upon eah face. If desired, grinding surfacesof the character shown at 49 in Fig. 7 may be provided on one face, and a different character of grindingsurface, such as illustrated at 50, may be provided on the opposite face.

In connection with the provision of two different forms of grinding surfaces, it shouldbe noted that the ribs which extend to the inner periphery of the plates in the two forms illustrated willeach of them be properly alined with the ribs 44 of the stationary auger plate when one side or the other is to be used for grinding purposes. This positioning of the grinding plate and auger plate on the stationary plate holder is of great importance, since it is necessary that the ribs on the auger plate should properly coperate with the ribs on the grinding plate, and by means of the construction above described, applicant has insured the proper positioning of these elements.

The rotary grinding mechanism comprises the rotary plate holder 29 which is provided with'a central circular opening 51 having a beveled edge portion 52 provided with diametrically opposed notches 53. The plate holder 29 is connected to the grinding shaft 22 by means of a hub 54 which is secured to the shaft 22 by a pin 55 and is provided with a beveledflange or peripheral bearing portion 56 adapted to be positioned'in engagement with the beveled edge 52 of the plate holder. The hub 54 is also provided with diametrically opposed lugs 57 which-are positioned in the notches 53 of the plate holder 29 and operatively connect the plate holder with the hub for rotative movement therewith. In order to prevent the separation of the hub from the plate holder, Cotter pins 58 are passed through transverse apertures 59 in the lugs 57, and by their engagement with the inner surface of the plate holder, prevents the accidental removal of the lugs therefrom. The advantages of this rocking connection will be set forth after the vremaining elements of the rotary grinding mechanism have been described.

As illustrated in Fig. l0, the rotary grinding plate holder 29 is provided with an annular rib 60 which in turn has formed therein a plurality of bolt holes 61 through which are passed the bolts 62 which secure the rotary auger plate 31 to the plate holder.- Near its outer periphery the rotary plate holderV is also provided with a series of bolt holes 64 through which are passed the bolts 65 whi'h secure the rotary grinding plate 30 to the plate holder 29. Outwardly projecting diametrically opposed lugs 67 are formed on the plate holder 29 and agitate the material in the casing 3S, therebygfacilitating its removal through the discharge chute 39.

From the above description it will be seen that applicant by means of the rocking connection of the rotary plate holder 29 to the shaft 22 through the hub 54, has provided a self alining construction for the rotary grinding elements, by means of which the grinding ofthe material fed between the auger plates 'and grinding plates will be renderedV eficient and uniform.

From the showing in Fig. 1, it will be seen that the heads of the bolts 37 and 65 which vsecure the reversible grinding plates to the plate holders, are received by countersunk outer portions 68 of the bolt holes in the grinding plates, these bolt holes being countersunk on each face of the grinding plate in order that the heads of the bolts may be inserted therein and may not interfere with the grinding operation. Y

iso

' forth.

As is usual, the material to be ground is fed into the hopper 21 and is partially broken up by the cob breakers 2l and feeder and breaker 25. This material passes between the stationary auger plate 28 and the rotary auger plate 3l and is further broken np by means of these auger plates, and is fed outwardly between the reversible grinding plates 27 and 30. The rocking connection or self-alining connection between the rotary grinding mechanism and the stationary grinding mechanism insures the proper spacing' and positioning of these elements with respect to each other and results in an efficient grinding of the material.

T he construction above described may also be very easily assembled, the discharge opening plate and the lugs formed on this plate and on the stationary auger plate insuring the correct positioning ofV the stationary auger plate on the plate holder 26, and insuring the proper alinement of the ribs il on the auger plate with the ribs 4S on the grinding plate.

llfhile l have in the above specification shown and described but a single embodiment of my invention, it is to be understood that it is capable of many modifications. Changes therefore in the construction and arrangement of parts may be made which do not depart from the spirit and scope of my invention as disclosed in the appended claims.

l claim:

l. ln a feed grinding machine, a plate holder, an auger plate having ribs thereon, a grinding plate having ribs thereon, and means for so positioning the auger plate and the grinding plate on said plate holder that said ribs are disposed in alinement with each other.

2. In a feed grinding machine, a plate holder, an auger plate having ribs thereon, a grinding plate having ribs thereon, and cooperating means on said plate holder and said auger plate for so positioning the auger plate on the plate holder that the ribs on the auger plate will be disposed in alinement with the ribs on the grinding plate when the latter is secured to the plate holder.

3. In a feed grinding machine, a plate holder, an auger plate having ribs thereon, a grinding plate having ribs thereon, and means interposed between said auger plate and said plate holder for so positioning the auger plate on the plate holder that the ribs on the grinning plate and the ribs on the auger plate will be disposed in alinement with each other when the grinding plate is secured to the plate holder.

l. ln a feed grinding machine, a plate holder,l an auger plate having ribs thereon and provided with an outwardly projecting lug, said plate holder having an annular opening provided with a notch therein Vadapted to be engaged by said lug, a grinding plate havingribs thereon, said auger plate positioned between the holder and grinding plate, and means for connecting said grinding plate to said plate holder.

5. ln a feed grinding machine, a plate holder, an anger plate having ribs thereon, grinding plate having ribs thereon, and a discharge opening plate interposed between said auger plate and said plate holder for so positioning said anger plate with respect to said plate holder that the ribs on said grinding plate will be disposed in alinement with the ribs on said auger plate vhen said grinding plate is secured to said plate holder.

6. In a feed grinding machine, a plate holder having an annular opening provided with a notch therein, a feed grinding plate, an anger plate adjacent thereto and a discharge opening plate provided with a lug adapted to engage the notch in said plate holder and positioned between said auger plate and said plate holder.

7. ln a feed grinding machine, a plate holder, an auger plate provided with shoulders on one suri ace thereof, and a discharge opening plate provided with edge portions vadapted to said shoulders and position said auger plate on said plate holder. 8. in feed grinding machine, a shaft,

a feeding auger fixed to said shaft, a rotary auger plat-e and a self-ahning driving connection between said plate and said shaft.

9. ln a feed grinding machine, a shaft,

a rotary grinding plate, a feeding auger positioned in advance of said plate, and a self-alining driving connection between said grinding plate and said shaft.

l0. ln a feed grinding machine, a shaft, a rotary plate holder, an auger plate secured thereto, a grinding plate secured to said plate holder, and a self-alining driving connection between said plate holder and said shaft.

11. ln a feed grinding machine, a shaft, rotary plate and a. hub secured to said Haft, having a 1peripheral bearing with said plate for alining said hub and said plate.

l2. ln a feed grinding machine, a shaft, plate movable laterally with respect to said shaft and having a central opening provided with -a beveled edge, and a` hub secured to maid shaft and having a corresponding beveled portion received by the central openof said plate.

18. in a feed grinding machine, a shaft, a rotary plate having a centra-l opening provided with a beveled edge, a hub secured to said shaft and having a corresponding beveled portion received by the opening of .said plate and said plate movable with respect to saidhub, and driving connecting means between said hub and said plate.

14. In a feed grinding machine, a shaft, a rotary plate having a central opening provided with a beveled edge, a feeding auger positioned in advance of said plate, a hub secured to said shaft having a corresponding beveled portion received by the opening in said plate, and means for securing said plate to said hub.

15.7In a feed grinding machine, a shaft, la rotary plate having a central opening provided with notches therein, and having a beve-led edge, and a hub secured to said shaft having a correspondingbeveled portion and provided with lugs engaging the notches in said plate.

16. In a feed grinding machine, a shaft, a plate holder, a grinding plate carried by said plate holder, an auger plate positioned within said grinding plate, and means for permitting a relative movement-of said plate holder, said grinding plate and said auger plate with respect to said shaft.

1'?. In a feed grinding machine, a shaft, a plate holder, a grinding plate carried by said plate holder, an auger plate positioned within said grinding plate, a feeding auger fixed to said shaft in advance of said auger plate, and means for permitting the relative movement of said plate holder, said grinding plate and said auger plate with respect to said shaft.

18.` In a feed grinding machine, a shaft, a stationary plate holder, a reversible grinding plate loosely driven by said shaft and positioned thereto, and an auger plate secured between said grinding plate and said plate holder.

19. In a feed grinding machine, a stationary plate holder, a reversible grinding plate secured thereto, a stationary auger plate secured to said plate holder, a grinding shaft, a rotary plate holder operatively connected thereto, and carrying an auger plate extending through said stationary auger plate and plate holder, and means for permitting a lateral movementof said rotary plate holder and auger plate with respect tov said stationary plate holder and auger plate.

20. In a feed grinding machine, a stationary plate holder, an auger plate carried thereby, a reversible grinding plate secured to said plate holder, a shaft, a rotary plate holder, a self-alining driving connection between said rotary plate holder and said shaft, an auger plate carried by said Yrotary plate holder, and a reversible grinding plate secured to said rotary plate.

21. In a feed grinding machine, a shaft, a rotary plate having a central opening provided with a beveled edge, vand a hub secured to said shaft and having a corresponding beveled portion received by the central opening of said plate wherebyV a relative movement is permitted between said plate and said hub. Y

In testimony whereof I affix my signature.

WILLIAM L. BEALL. 

